三峡大坝介绍英文
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water. The dam's storage capacity is nearly 40 billion cubic metres. It will create a 658-sq.-km reservoir. Its concrete wall is 192 metres high. It has a total of 22 sluice gates. It will have 26 700-megawatt turbine generators. They are expected to
The aerial photo, taken on June 3, 2003, shows the Three Gorges Reservoir on the middle reaches of the Yangtze River at Yichang, Hubei province. The water level reached, as planned, 114.29 metres high on the sluice gateห้องสมุดไป่ตู้ (AP Photo Xinhua, Cheng Min)
Advocates say China's development depends on it. They say it will provide a clean source of energy for future generations. But critics say it could be a monumental ecological disaster.
Geography Case Study - Chang Jiang
Cons and Pros of the Three Gorges Project
Introduction
China's massive Three Gorges hydroelectric project has generated plenty of controversy from the start. It was first proposed in 1919 by revolutionary leader Sun Yat-sen as a way of providing energy to fuel the nation's industrial development. The plan was revived in 1954 as a way to control the chronic overflow of the legendary Yangtze river after tens of thousands were killed in widespread flooding. After several false starts, work began in earnest in 1979.
Workers build a stone embankment as water from the Yangtze River rise up the shoreline at the newly built town of Fengjie, in central China's Chongqing municipality, June 9, 2003. The old town of Fengjie was demolished because it was below the high water mark of the reservoir of the Three Gorges Dam. (AP Photo/Greg Baker)
Facts
The 16-year project is due to be completed in 2009. The river's level is expected to rise to 175 metres. By mid-June 2003 the dam was holding back 12 billion cubic metres of
A Chinese man sits in the rubble of the demolished old town of Wushan, as he looks out over the city's temporary dock on the Yangtze River in central China, June 6, 2003. (AP Photo/Greg Baker
Water flows through water diversion holes at the bottom of the Three Gorges dam, June 1, 2003. China's Three Gorges Project officially began to store water as the sluice gate of the dam started to be closed as scheduled. China began filling the reservoir behind its gargantuan Three Gorges Dam in a major step toward completion of the world-largest hydroelectric project. (AP Photo/Xinhua, Cheng Min)
A man rushes to board a boat before it leaves, in Chongqing city, on the Yangtze River in central China, June 5, 2003. Though more than 600 kilometres (372 miles) from the Three Gorges Dam, water levels at Chongqing will rise up to 15 metres when the dam's reservoir is filled to its highest level on completion in 2009. (AP Photo/Greg Baker)
Ships sail through the Xiling Gorge of the Three Gorges on the Yangtze River in central China, June 11, 2003. The water level of the Three Gorges Reservoir reached 135 metres (433 feet) June 10, five days ahead of the schedule. (AP Photo/Xinhua, Cheng Min)
The dam's sluice gates were closed on June 1, 2003, allowing the reservoir behind it to begin filling. By June 10, 2003, the water was 135 metres deep, and it's expected to be 175 metres deep by 2009.
Three young boys watch as rising waters inundate a corn field at Qutang Village, near Fengjie, in central China's Chongqing municipality, June 9, 2003. Water levels have been rising between two and four metres each day since China began filling the reservoir. Despite warnings from local officials that waters would rise in June, many farmers planted crops because they were unsure of where the high water mark was on their land, while others did not believe that waters could rise so high. (AP Photo/Greg Baker)
Location of ‘Sanxia’
A man fishes as water flows through water diversion holes of the Three Gorges Dam on the Yangtze River in central China's Hubei Province, June 11, 2003. Some 10 water diversion holes were opened to release water. The water level of the Three Gorges Reservoir reached 135 metres (433 feet) on June 10. (AP Photo/Xinhua, Du Huaju)
produce 18.2 million kilowatts by 2009. Eleven of the reactors were in place as of January 2005. It has the world's largest lock system, 6?kilometres in length. The lock lifts and lowers ships in five stages. The dam is located in Yichang, in the central province of Hubei. It's China's biggest engineering project since the Great Wall was built more than 2,000 years ago. Total projected cost: 180 billion yuan ($26.5 billion).
Hydroelectric generating sets of the Three Gorges Project in central China's Hubei Province are shown in this April 9, 2003 photo. Four of the hydroelectric generating sets, which are in the final phase of installation and test, will be put into operation later this year. (AP Photo/Xinhua, Du Huaju)
Two men carry bricks to a barge at the temporary dock at Wushan, in the middle of the Three Gorges on the Yangtze River in central China, June 6, 2003. Lower lying areas of the town have been demolished in preparation for the increase in the water level as the controversial Three Gorges Dam reservoir begins to fill. (AP Photo/Greg Baker)
The aerial photo, taken on June 3, 2003, shows the Three Gorges Reservoir on the middle reaches of the Yangtze River at Yichang, Hubei province. The water level reached, as planned, 114.29 metres high on the sluice gateห้องสมุดไป่ตู้ (AP Photo Xinhua, Cheng Min)
Advocates say China's development depends on it. They say it will provide a clean source of energy for future generations. But critics say it could be a monumental ecological disaster.
Geography Case Study - Chang Jiang
Cons and Pros of the Three Gorges Project
Introduction
China's massive Three Gorges hydroelectric project has generated plenty of controversy from the start. It was first proposed in 1919 by revolutionary leader Sun Yat-sen as a way of providing energy to fuel the nation's industrial development. The plan was revived in 1954 as a way to control the chronic overflow of the legendary Yangtze river after tens of thousands were killed in widespread flooding. After several false starts, work began in earnest in 1979.
Workers build a stone embankment as water from the Yangtze River rise up the shoreline at the newly built town of Fengjie, in central China's Chongqing municipality, June 9, 2003. The old town of Fengjie was demolished because it was below the high water mark of the reservoir of the Three Gorges Dam. (AP Photo/Greg Baker)
Facts
The 16-year project is due to be completed in 2009. The river's level is expected to rise to 175 metres. By mid-June 2003 the dam was holding back 12 billion cubic metres of
A Chinese man sits in the rubble of the demolished old town of Wushan, as he looks out over the city's temporary dock on the Yangtze River in central China, June 6, 2003. (AP Photo/Greg Baker
Water flows through water diversion holes at the bottom of the Three Gorges dam, June 1, 2003. China's Three Gorges Project officially began to store water as the sluice gate of the dam started to be closed as scheduled. China began filling the reservoir behind its gargantuan Three Gorges Dam in a major step toward completion of the world-largest hydroelectric project. (AP Photo/Xinhua, Cheng Min)
A man rushes to board a boat before it leaves, in Chongqing city, on the Yangtze River in central China, June 5, 2003. Though more than 600 kilometres (372 miles) from the Three Gorges Dam, water levels at Chongqing will rise up to 15 metres when the dam's reservoir is filled to its highest level on completion in 2009. (AP Photo/Greg Baker)
Ships sail through the Xiling Gorge of the Three Gorges on the Yangtze River in central China, June 11, 2003. The water level of the Three Gorges Reservoir reached 135 metres (433 feet) June 10, five days ahead of the schedule. (AP Photo/Xinhua, Cheng Min)
The dam's sluice gates were closed on June 1, 2003, allowing the reservoir behind it to begin filling. By June 10, 2003, the water was 135 metres deep, and it's expected to be 175 metres deep by 2009.
Three young boys watch as rising waters inundate a corn field at Qutang Village, near Fengjie, in central China's Chongqing municipality, June 9, 2003. Water levels have been rising between two and four metres each day since China began filling the reservoir. Despite warnings from local officials that waters would rise in June, many farmers planted crops because they were unsure of where the high water mark was on their land, while others did not believe that waters could rise so high. (AP Photo/Greg Baker)
Location of ‘Sanxia’
A man fishes as water flows through water diversion holes of the Three Gorges Dam on the Yangtze River in central China's Hubei Province, June 11, 2003. Some 10 water diversion holes were opened to release water. The water level of the Three Gorges Reservoir reached 135 metres (433 feet) on June 10. (AP Photo/Xinhua, Du Huaju)
produce 18.2 million kilowatts by 2009. Eleven of the reactors were in place as of January 2005. It has the world's largest lock system, 6?kilometres in length. The lock lifts and lowers ships in five stages. The dam is located in Yichang, in the central province of Hubei. It's China's biggest engineering project since the Great Wall was built more than 2,000 years ago. Total projected cost: 180 billion yuan ($26.5 billion).
Hydroelectric generating sets of the Three Gorges Project in central China's Hubei Province are shown in this April 9, 2003 photo. Four of the hydroelectric generating sets, which are in the final phase of installation and test, will be put into operation later this year. (AP Photo/Xinhua, Du Huaju)
Two men carry bricks to a barge at the temporary dock at Wushan, in the middle of the Three Gorges on the Yangtze River in central China, June 6, 2003. Lower lying areas of the town have been demolished in preparation for the increase in the water level as the controversial Three Gorges Dam reservoir begins to fill. (AP Photo/Greg Baker)